Why is my cousin being so mean to me?

I don't know why my cousin is being so mean to me today. In the morning he got mad because his sister used his iPod touch. And while he was imessaging me about it he started saying "you don't help" and "why am i even telling you this", when I told him that it's just an iPod and his sister didn't even do anything to his iPod. An hour ago I was playing Minecraft with him on a server and we were playing a game on the server and he lost and started blaming me for not protecting him. He got really mad and I told him "dude calm down!". And when we were playing another game he got a kit for a game and he got mad that the skeleton only got 2 arrows and said "WHY DIDN'T YOU TELL ME IT HAD THIS YOU B****!". I told him he didn't even ask me about it. And now my cousin is not talking to me. I don't know why he is being so mean to me and calling me a b**** . Please help and how do I get him to stop? Btw he is 14 and I'm 13.

Don't worry to much about him your a good person and you matter also and if he doesn't want to respect you then that's his problem let him act like a baby. Some people just have bad anger problems. Next time he tries to talk to you just tell him " you know what I like hanging out with you but your way to immature so until you apologize I don't want to speak to you in the mean time."

Ignore him he is probley cranky or not having a very good week he'll get over it!

Don't worry… Everyone gets like tht… All cranky n all tht… If it goes on for a really long time thne ask him y hes being so mean… Ask him in person… Be serious… And stay till he gives an answer